Unless Darkseid can mindrape him, Prime likely wins.
"A great tactician creates plans.
A good tactician recognizes the soundness of a plan presented to him.
A fair tactician must see the plan succeed before offering approval.
Those with no tactical ability at all may never understand or accept the plan.
And when a mind is too deficient in understanding, the resulting gap is often filled with resentment."
Prime. this version of him is too uber. darkseid is very cocky he will taunt prime, probably call him a child and say he is not worthy of his time. then Prime gets into his i kill you to death mode, heads will be shoved up asses, fun fun fun.